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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tv.receiver;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.media.tv.TvInputInfo;
import android.media.tv.TvInputManager;
import android.net.Uri;
import android.os.Handler;
import com.android.tv.TvActivity;
import com.android.tv.util.TvSettings;
import com.android.tv.util.Utils;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* A class for handling the broadcast intents from PackageManager.
*/
public class PackageIntentsReceiver extends BroadcastReceiver {
// Delay before checking TvInputManager's input list.
// Sometimes TvInputManager's input list isn't updated yet when this receiver is called.
// So we should check the list after some delay.
private static final long TV_INPUT_UPDATE_DELAY_MS = 500;
private TvInputManager mTvInputManager;
private SharedPreferences mPreferences;
private final Handler mHandler = new Handler();
private Runnable mTvActivityUpdater;
private Runnable mDisplayInputNameCleaner;
private void init(Context context) {
mTvInputManager = (TvInputManager) context.getSystemService(Context.TV_INPUT_SERVICE);
mPreferences = Utils.getSharedPreferencesOfDisplayNameForInput(context);
final Context applicationContext = context.getApplicationContext();
mTvActivityUpdater = new Runnable() {
@Override
public void run() {
enableTvActivityWithinPackageManager(applicationContext,
!mTvInputManager.getTvInputList().isEmpty());
}
};
mDisplayInputNameCleaner = new Runnable() {
@Override
public void run() {
cleanupUnusedDisplayInputName();
}
};
}
@Override
public void onReceive(Context context, Intent intent) {
if (mTvInputManager == null) {
init(context);
}
String action = intent.getAction();
if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) {
Uri uri = intent.getData();
onPackageFullyRemoved(uri != null ? uri.getSchemeSpecificPart() : null);
}
mHandler.removeCallbacks(mTvActivityUpdater);
mHandler.postDelayed(mTvActivityUpdater, TV_INPUT_UPDATE_DELAY_MS);
}
private void onPackageFullyRemoved(String packageName) {
if (packageName == null || packageName.isEmpty()) {
return;
}
mHandler.removeCallbacks(mDisplayInputNameCleaner);
mHandler.postDelayed(mDisplayInputNameCleaner, TV_INPUT_UPDATE_DELAY_MS);
}
private void cleanupUnusedDisplayInputName() {
Set<String> keys = mPreferences.getAll().keySet();
HashSet<String> unusedKeys = new HashSet<String>(keys);
for (String key : keys) {
if (!key.startsWith(TvSettings.PREF_DISPLAY_INPUT_NAME)) {
unusedKeys.remove(key);
}
}
List<TvInputInfo> inputs = mTvInputManager.getTvInputList();
for (TvInputInfo input : inputs) {
unusedKeys.remove(TvSettings.PREF_DISPLAY_INPUT_NAME + input.getId());
}
if (!unusedKeys.isEmpty()) {
SharedPreferences.Editor editor = mPreferences.edit();
for (String key : unusedKeys) {
editor.remove(key);
}
editor.commit();
}
}
private void enableTvActivityWithinPackageManager(Context context, boolean enable) {
PackageManager pm = context.getPackageManager();
ComponentName name = new ComponentName(context, TvActivity.class);
int newState = enable ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED :
PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
if (pm.getComponentEnabledSetting(name) != newState) {
pm.setComponentEnabledSetting(name, newState, PackageManager.DONT_KILL_APP);
}
}
}
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